ENH: Initial check-in of re-worked particle forces

src/lagrangian/intermediate/Make/files

@@ -23,6 +23,7 @@ KINEMATICPARCEL=$(DERIVEDPARCELS)/basicKinematicParcel
 $(KINEMATICPARCEL)/basicKinematicParcel.C
 $(KINEMATICPARCEL)/defineBasicKinematicParcel.C
 $(KINEMATICPARCEL)/makeBasicKinematicParcelSubmodels.C
+$(KINEMATICPARCEL)/makeBasicKinematicParcelForces.C
 
 
 /* thermo parcel sub-models */
@@ -30,6 +31,7 @@ THERMOPARCEL=$(DERIVEDPARCELS)/basicThermoParcel
 $(THERMOPARCEL)/basicThermoParcel.C
 $(THERMOPARCEL)/defineBasicThermoParcel.C
 $(THERMOPARCEL)/makeBasicThermoParcelSubmodels.C
+$(THERMOPARCEL)/makeBasicThermoParcelForces.C
 
 
 /* reacting parcel sub-models */
@@ -37,6 +39,7 @@ REACTINGPARCEL=$(DERIVEDPARCELS)/basicReactingParcel
 $(REACTINGPARCEL)/basicReactingParcel.C
 $(REACTINGPARCEL)/defineBasicReactingParcel.C
 $(REACTINGPARCEL)/makeBasicReactingParcelSubmodels.C
+$(REACTINGPARCEL)/makeBasicReactingParcelForces.C
 
 
 /* reacting multiphase parcel sub-models */
@@ -44,6 +47,7 @@ REACTINGMPPARCEL=$(DERIVEDPARCELS)/basicReactingMultiphaseParcel
 $(REACTINGMPPARCEL)/basicReactingMultiphaseParcel.C
 $(REACTINGMPPARCEL)/defineBasicReactingMultiphaseParcel.C
 $(REACTINGMPPARCEL)/makeBasicReactingMultiphaseParcelSubmodels.C
+$(REACTINGMPPARCEL)/makeBasicReactingMultiphaseParcelForces.C
 
 
 /* bolt-on models */
@@ -78,10 +82,6 @@ $(REACTINGMPINJECTION)/ReactingMultiphaseLookupTableInjection/reactingMultiphase
 IntegrationScheme/makeIntegrationSchemes.C
 
 
-/* particle forces */
-particleForces/particleForces.C
-
-
 /* phase properties */
 phaseProperties/phaseProperties/phaseProperties.C
 phaseProperties/phaseProperties/phasePropertiesIO.C

src/lagrangian/intermediate/clouds/Templates/KinematicCloud/KinematicCloud.C

@@ -30,7 +30,6 @@ License
 
 #include "CollisionModel.H"
 #include "DispersionModel.H"
-#include "DragModel.H"
 #include "InjectionModel.H"
 #include "PatchInteractionModel.H"
 #include "PostProcessingModel.H"
@@ -209,15 +208,6 @@ void Foam::KinematicCloud<ParcelType>::setModels()
         ).ptr()
     );
 
-    dragModel_.reset
-    (
-        DragModel<KinematicCloud<ParcelType> >::New
-        (
-            subModelProperties_,
-            *this
-        ).ptr()
-    );
-
     injectionModel_.reset
     (
         InjectionModel<KinematicCloud<ParcelType> >::New
@@ -306,7 +296,7 @@ void Foam::KinematicCloud<ParcelType>::preEvolve()
     Info<< "\nSolving cloud " << this->name() << endl;
 
     this->dispersion().cacheFields(true);
-    forces_.cacheFields(true, solution_.interpolationSchemes());
+    forces_.cacheFields(true);
     updateCellOccupancy();
 }
 
@@ -390,7 +380,7 @@ void Foam::KinematicCloud<ParcelType>::evolveCloud
     }
     else
     {
-//        this->surfaceFilm().injectStreadyState(td);
+//        this->surfaceFilm().injectSteadyState(td);
 
         this->injection().injectSteadyState(td, solution_.deltaT());
 
@@ -473,7 +463,7 @@ void Foam::KinematicCloud<ParcelType>::postEvolve()
     }
 
     this->dispersion().cacheFields(false);
-    forces_.cacheFields(false, solution_.interpolationSchemes());
+    forces_.cacheFields(false);
 
     this->postProcessing().post();
 
@@ -488,9 +478,10 @@ void Foam::KinematicCloud<ParcelType>::cloudReset(KinematicCloud<ParcelType>& c)
 
     rndGen_ = c.rndGen_;
 
+    forces_.transfer(c.forces_);
+
     collisionModel_ = c.collisionModel_->clone();
     dispersionModel_= c.dispersionModel_->clone();
-    dragModel_ = c.dragModel_->clone();
     injectionModel_ = c.injectionModel_->clone();
     patchInteractionModel_ = c.patchInteractionModel_->clone();
     postProcessingModel_ = c.postProcessingModel_->clone();
@@ -540,10 +531,15 @@ Foam::KinematicCloud<ParcelType>::KinematicCloud
     U_(U),
     mu_(mu),
     g_(g),
-    forces_(mesh_, particleProperties_, g_.value(), solution_.active()),
+    forces_
+    (
+        *this,
+        mesh_,
+        particleProperties_.subOrEmptyDict("particleForces"),
+        solution_.active()
+    ),
     collisionModel_(NULL),
     dispersionModel_(NULL),
-    dragModel_(NULL),
     injectionModel_(NULL),
     patchInteractionModel_(NULL),
     postProcessingModel_(NULL),
@@ -606,7 +602,7 @@ Foam::KinematicCloud<ParcelType>::KinematicCloud
     const word& name
 )
 :
-    Cloud<ParcelType>(c.mesh(), name, c),
+    Cloud<ParcelType>(c.mesh_, name, c),
     kinematicCloud(),
     cloudCopyPtr_(NULL),
     mesh_(c.mesh_),
@@ -623,7 +619,6 @@ Foam::KinematicCloud<ParcelType>::KinematicCloud
     forces_(c.forces_),
     collisionModel_(c.collisionModel_->clone()),
     dispersionModel_(c.dispersionModel_->clone()),
-    dragModel_(c.dragModel_->clone()),
     injectionModel_(c.injectionModel_->clone()),
     patchInteractionModel_(c.patchInteractionModel_->clone()),
     postProcessingModel_(c.postProcessingModel_->clone()),
@@ -661,7 +656,6 @@ Foam::KinematicCloud<ParcelType>::KinematicCloud
             c.UCoeff_()
         )
     )
-
 {}
 
 
@@ -698,10 +692,9 @@ Foam::KinematicCloud<ParcelType>::KinematicCloud
     U_(c.U_),
     mu_(c.mu_),
     g_(c.g_),
-    forces_(mesh),
+    forces_(*this, mesh),
     collisionModel_(NULL),
     dispersionModel_(NULL),
-    dragModel_(NULL),
     injectionModel_(NULL),
     patchInteractionModel_(NULL),
     postProcessingModel_(NULL),

src/lagrangian/intermediate/clouds/Templates/KinematicCloud/KinematicCloud.H

@@ -29,10 +29,14 @@ Description
 
     - holds a 'cloudSolution' class that stores all relevant solution info
 
+    - particle forces
+      - buoyancy
+      - drag
+      - pressure gradient
+
     - sub-models:
       - Collision model
       - Dispersion model
-      - Drag model
       - Injection model
       - Patch interaction model
       - Post-processing model
@@ -55,7 +59,6 @@ SourceFiles
 #include "fvMesh.H"
 #include "volFields.H"
 #include "fvMatrices.H"
-#include "particleForces.H"
 
 #include "IntegrationSchemesFwd.H"
 
@@ -72,9 +75,6 @@ class CollisionModel;
 template<class CloudType>
 class DispersionModel;
 
-template<class CloudType>
-class DragModel;
-
 template<class CloudType>
 class InjectionModel;
 
@@ -98,6 +98,14 @@ class KinematicCloud
     public Cloud<ParcelType>,
     public kinematicCloud
 {
+public:
+
+    //- Type of parcel the cloud was instantiated for
+    typedef ParcelType parcelType;
+
+
+private:
+
     // Private data
 
         //- Cloud copy pointer
@@ -316,7 +324,7 @@ protected:
 
 
         //- Optional particle forces
-        particleForces forces_;
+        typename ParcelType::forceType forces_;
 
 
         // References to the cloud sub-models
@@ -329,9 +337,6 @@ protected:
             autoPtr<DispersionModel<KinematicCloud<ParcelType> > >
                 dispersionModel_;
 
-            //- Drag transfer model
-            autoPtr<DragModel<KinematicCloud<ParcelType> > > dragModel_;
-
             //- Injector model
             autoPtr<InjectionModel<KinematicCloud<ParcelType> > >
                 injectionModel_;
@@ -450,10 +455,6 @@ public:
     virtual ~KinematicCloud();
 
 
-    //- Type of parcel the cloud was instantiated for
-    typedef ParcelType parcelType;
-
-
     // Member Functions
 
         // Access
@@ -521,7 +522,7 @@ public:
 
 
             //- Optional particle forces
-            inline const particleForces& forces() const;
+            inline const typename ParcelType::forceType& forces() const;
 
 
             // Sub-models
@@ -542,10 +543,6 @@ public:
                 inline DispersionModel<KinematicCloud<ParcelType> >&
                     dispersion();
 
-                //- Return const-access to the drag model
-                inline const DragModel<KinematicCloud<ParcelType> >&
-                    drag() const;
-
                 //- Return const access to the injection model
                 inline const InjectionModel<KinematicCloud<ParcelType> >&
                     injection() const;

src/lagrangian/intermediate/clouds/Templates/KinematicCloud/KinematicCloudI.H

@@ -257,7 +257,7 @@ Foam::KinematicCloud<ParcelType>::g() const
 
 
 template<class ParcelType>
-inline const Foam::particleForces&
+inline const typename ParcelType::forceType&
 Foam::KinematicCloud<ParcelType>::forces() const
 {
     return forces_;
@@ -296,14 +296,6 @@ Foam::KinematicCloud<ParcelType>::dispersion()
 }
 
 
-template<class ParcelType>
-inline const Foam::DragModel<Foam::KinematicCloud<ParcelType> >&
-Foam::KinematicCloud<ParcelType>::drag() const
-{
-    return dragModel_;
-}
-
-
 template<class ParcelType>
 inline const Foam::InjectionModel<Foam::KinematicCloud<ParcelType> >&
 Foam::KinematicCloud<ParcelType>::injection() const

src/lagrangian/intermediate/parcels/Templates/KinematicParcel/KinematicParcel.C

@@ -176,37 +176,13 @@ const Foam::vector Foam::KinematicParcel<ParcelType>::calcVelocity
     scalar& Cud
 ) const
 {
-    const polyMesh& mesh = this->cloud().pMesh();
+    const typename ParcelType::forceType& forces = td.cloud().forces();
-
-    // Momentum transfer coefficient
-    const scalar utc = td.cloud().drag().utc(Re, d, mu) + ROOTVSMALL;
-
-    tetIndices tetIs = this->currentTetIndices();
 
     // Momentum source due to particle forces
-    const vector Fcp = mass*td.cloud().forces().calcCoupled
+    const ParcelType& p = static_cast<const ParcelType&>(*this);
-    (
+    const forceSuSp Fcp = forces.calcCoupled(p, dt, Re, rho, mu);
-        this->position(),
+    const forceSuSp Fncp = forces.calcNonCoupled(p, dt, Re, rho, mu);
-        tetIs,
+    const forceSuSp Feff = Fcp + Fncp;
-        dt,
-        rhoc_,
-        rho,
-        Uc_,
-        U,
-        d
-    );
-
-    const vector Fncp = mass*td.cloud().forces().calcNonCoupled
-    (
-        this->position(),
-        tetIs,
-        dt,
-        rhoc_,
-        rho,
-        Uc_,
-        U,
-        d
-    );
 
 
     // New particle velocity
@@ -214,8 +190,8 @@ const Foam::vector Foam::KinematicParcel<ParcelType>::calcVelocity
 
     // Update velocity - treat as 3-D
     const scalar As = this->areaS(d);
-    const vector ap = Uc_ + (Fcp + Fncp + Su)/(utc*As);
+    const vector ap = Uc_ + (mass*Feff.Su() + Su)/(As*Feff.Sp());
-    const scalar bp = 6.0*utc/(rho*d);
+    const scalar bp = 6.0*Feff.Sp()/(rho*d);
 
     Cud = bp;
 
@@ -224,9 +200,10 @@ const Foam::vector Foam::KinematicParcel<ParcelType>::calcVelocity
 
     vector Unew = Ures.value();
 
-    dUTrans += dt*(utc*As*(Ures.average() - Uc_) - Fcp);
+    dUTrans += dt*(Fncp.Sp()*As*(Ures.average() - Uc_) - mass*Fcp.Su());
 
     // Apply correction to velocity and dUTrans for reduced-D cases
+    const polyMesh& mesh = this->cloud().pMesh();
     meshTools::constrainDirection(mesh, mesh.solutionD(), Unew);
     meshTools::constrainDirection(mesh, mesh.solutionD(), dUTrans);
 

src/lagrangian/intermediate/parcels/Templates/KinematicParcel/KinematicParcel.H

@@ -56,6 +56,8 @@ SourceFiles
 #include "labelFieldIOField.H"
 #include "vectorFieldIOField.H"
 
+#include "ParticleForceList.H"
+
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
@@ -88,6 +90,10 @@ class KinematicParcel
 {
 public:
 
+    //- Type of force to be used by this parcel type
+    typedef ParticleForceList<KinematicCloud<ParcelType> > forceType;
+
+
     //- Class to hold kinematic particle constant properties
     class constantProperties
     {
@@ -456,6 +462,15 @@ public:
             //- Return const access to turbulent velocity fluctuation
             inline const vector& UTurb() const;
 
+            //- Return const access to carrier density [kg/m3]
+            inline scalar rhoc() const;
+
+            //- Return const access to carrier velocity [m/s]
+            inline const vector& Uc() const;
+
+            //- Return const access to carrier viscosity [Pa.s]
+            inline scalar muc() const;
+
             //- Return const access to the collision records
             inline const collisionRecordList& collisionRecords() const;
 

src/lagrangian/intermediate/parcels/Templates/KinematicParcel/KinematicParcelI.H

@@ -409,6 +409,27 @@ inline const Foam::vector& Foam::KinematicParcel<ParcelType>::UTurb() const
 }
 
 
+template <class ParcelType>
+inline Foam::scalar Foam::KinematicParcel<ParcelType>::rhoc() const
+{
+    return rhoc_;
+}
+
+
+template <class ParcelType>
+inline const Foam::vector& Foam::KinematicParcel<ParcelType>::Uc() const
+{
+    return Uc_;
+}
+
+
+template <class ParcelType>
+inline Foam::scalar Foam::KinematicParcel<ParcelType>::muc() const
+{
+    return muc_;
+}
+
+
 template<class ParcelType>
 inline bool& Foam::KinematicParcel<ParcelType>::active()
 {

src/lagrangian/intermediate/parcels/Templates/ThermoParcel/ThermoParcel.H

@@ -344,6 +344,12 @@ public:
             //- Return the parcel sensible enthalpy
             inline scalar hs() const;
 
+            //- Return const access to carrier temperature
+            inline scalar Tc() const;
+
+            //- Return const access to carrier specific heat capacity
+            inline scalar Cpc() const;
+
 
         // Edit
 

src/lagrangian/intermediate/parcels/Templates/ThermoParcel/ThermoParcelI.H

@@ -321,6 +321,20 @@ inline Foam::scalar Foam::ThermoParcel<ParcelType>::hs() const
 }
 
 
+template<class ParcelType>
+inline Foam::scalar Foam::ThermoParcel<ParcelType>::Tc() const
+{
+    return Tc_;
+}
+
+
+template<class ParcelType>
+inline Foam::scalar Foam::ThermoParcel<ParcelType>::Cpc() const
+{
+    return Cpc_;
+}
+
+
 template<class ParcelType>
 inline Foam::scalar& Foam::ThermoParcel<ParcelType>::T()
 {

src/lagrangian/intermediate/parcels/derived/basicKinematicParcel/makeBasicKinematicParcelForces.C

@@ -0,0 +1,40 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "basicKinematicParcel.H"
+
+// Kinematic
+#include "makeParcelForces.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    // Kinematic sub-models
+    makeParcelForces(basicKinematicParcel);
+};
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/parcels/derived/basicKinematicParcel/makeBasicKinematicParcelSubmodels.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2008-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2008-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -27,7 +27,6 @@ License
 
 // Kinematic
 #include "makeParcelDispersionModels.H"
-#include "makeParcelDragModels.H"
 #include "makeParcelInjectionModels.H"
 #include "makeParcelCollisionModels.H"
 #include "makeParcelPatchInteractionModels.H"
@@ -40,7 +39,6 @@ namespace Foam
 {
     // Kinematic sub-models
     makeParcelDispersionModels(basicKinematicParcel);
-    makeParcelDragModels(basicKinematicParcel);
     makeParcelInjectionModels(basicKinematicParcel);
     makeParcelCollisionModels(basicKinematicParcel);
     makeParcelPatchInteractionModels(basicKinematicParcel);

src/lagrangian/intermediate/parcels/derived/basicReactingMultiphaseParcel/makeBasicReactingMultiphaseParcelForces.C

@@ -0,0 +1,40 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "basicReactingMultiphaseParcel.H"
+
+// Using thermodynamic variant
+#include "makeThermoParcelForces.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    // Kinematic sub-models
+    makeThermoParcelForces(basicReactingMultiphaseParcel);
+};
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/parcels/derived/basicReactingMultiphaseParcel/makeBasicReactingMultiphaseParcelSubmodels.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2008-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2008-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -27,7 +27,6 @@ License
 
 // Kinematic
 #include "makeParcelDispersionModels.H"
-#include "makeParcelDragModels.H"
 #include "makeReactingMultiphaseParcelInjectionModels.H" // MP variant
 #include "makeParcelCollisionModels.H"
 #include "makeParcelPatchInteractionModels.H"
@@ -51,7 +50,6 @@ namespace Foam
 {
     // Kinematic sub-models
     makeParcelDispersionModels(basicReactingMultiphaseParcel);
-    makeParcelDragModels(basicReactingMultiphaseParcel);
     makeReactingMultiphaseParcelInjectionModels(basicReactingMultiphaseParcel);
     makeParcelCollisionModels(basicReactingMultiphaseParcel);
     makeParcelPatchInteractionModels(basicReactingMultiphaseParcel);

src/lagrangian/intermediate/parcels/derived/basicReactingParcel/makeBasicReactingParcelForces.C

@@ -0,0 +1,40 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "basicReactingParcel.H"
+
+// Using thermodynamic variant
+#include "makeThermoParcelForces.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    // Kinematic sub-models
+    makeThermoParcelForces(basicReactingParcel);
+};
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/parcels/derived/basicReactingParcel/makeBasicReactingParcelSubmodels.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2008-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2008-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -27,7 +27,6 @@ License
 
 // Kinematic
 #include "makeParcelDispersionModels.H"
-#include "makeParcelDragModels.H"
 #include "makeReactingParcelInjectionModels.H" // Reacting variant
 #include "makeParcelCollisionModels.H"
 #include "makeParcelPatchInteractionModels.H"
@@ -47,7 +46,6 @@ namespace Foam
 {
     // Kinematic sub-models
     makeParcelDispersionModels(basicReactingParcel);
-    makeParcelDragModels(basicReactingParcel);
     makeReactingParcelInjectionModels(basicReactingParcel);
     makeParcelCollisionModels(basicReactingParcel);
     makeParcelPatchInteractionModels(basicReactingParcel);

src/lagrangian/intermediate/parcels/derived/basicThermoParcel/makeBasicThermoParcelForces.C

@@ -0,0 +1,40 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "basicThermoParcel.H"
+
+// Using thermodynamic variant
+#include "makeThermoParcelForces.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    // Kinematic sub-models
+    makeThermoParcelForces(basicThermoParcel);
+};
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/parcels/derived/basicThermoParcel/makeBasicThermoParcelSubmodels.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2008-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2008-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -27,7 +27,6 @@ License
 
 // Kinematic
 #include "makeParcelDispersionModels.H"
-#include "makeParcelDragModels.H"
 #include "makeParcelInjectionModels.H"
 #include "makeParcelCollisionModels.H"
 #include "makeParcelPatchInteractionModels.H"
@@ -43,7 +42,6 @@ namespace Foam
 {
     // Kinematic sub-models
     makeParcelDispersionModels(basicThermoParcel);
-    makeParcelDragModels(basicThermoParcel);
     makeParcelInjectionModels(basicThermoParcel);
     makeParcelCollisionModels(basicThermoParcel);
     makeParcelPatchInteractionModels(basicThermoParcel);

src/lagrangian/intermediate/parcels/include/makeParcelForces.H

@@ -0,0 +1,89 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef makeParcelForces_H
+#define makeParcelForces_H
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "KinematicCloud.H"
+
+#include "SphereDragForce.H"
+#include "NonSphereDragForce.H"
+
+#include "GravityForce.H"
+#include "ParamagneticForce.H"
+#include "PressureGradientForce.H"
+#include "SRFForce.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#define makeParcelForces(ParcelType)                                          \
+                                                                              \
+    makeParticleForceModel(KinematicCloud<ParcelType>);                       \
+                                                                              \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        SphereDragForce,                                                      \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        NonSphereDragForce,                                                   \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        GravityForce,                                                         \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        ParamagneticForce,                                                    \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        PressureGradientForce,                                                \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        SRFForce,                                                             \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/lagrangian/intermediate/parcels/include/makeThermoParcelForces.H

@@ -0,0 +1,96 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef makeThermoParcelForces_H
+#define makeThermoParcelForces_H
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "KinematicCloud.H"
+
+#include "SphereDragForce.H"
+#include "NonSphereDragForce.H"
+
+#include "BrownianMotionForce.H"
+#include "GravityForce.H"
+#include "ParamagneticForce.H"
+#include "PressureGradientForce.H"
+#include "SRFForce.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#define makeThermoParcelForces(ParcelType)                                        \
+                                                                              \
+    makeParticleForceModel(KinematicCloud<ParcelType>);                       \
+                                                                              \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        SphereDragForce,                                                      \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        NonSphereDragForce,                                                   \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        BrownianMotionForce,                                                  \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        GravityForce,                                                         \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        ParamagneticForce,                                                    \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        PressureGradientForce,                                                \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );                                                                        \
+    makeParticleForceModelType                                                \
+    (                                                                         \
+        SRFForce,                                                             \
+        KinematicCloud,                                                       \
+        ParcelType                                                            \
+    );
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/lagrangian/intermediate/particleForces/particleForces.C

@@ -1,362 +0,0 @@
-/*---------------------------------------------------------------------------*\
-  =========                 |
-  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
-   \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2008-2011 OpenCFD Ltd.
-     \\/     M anipulation  |
--------------------------------------------------------------------------------
-License
-    This file is part of OpenFOAM.
-
-    OpenFOAM is free software: you can redistribute it and/or modify it
-    under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
-    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-    for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
-
-\*---------------------------------------------------------------------------*/
-
-#include "particleForces.H"
-#include "fvMesh.H"
-#include "volFields.H"
-#include "fvcGrad.H"
-#include "mathematicalConstants.H"
-#include "electromagneticConstants.H"
-#include "SRFModel.H"
-
-// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
-
-void Foam::particleForces::deleteFields()
-{
-    if (gradUPtr_)
-    {
-        delete gradUPtr_;
-        gradUPtr_ = NULL;
-    }
-
-    if (HdotGradHInterPtr_)
-    {
-        delete HdotGradHInterPtr_;
-        HdotGradHInterPtr_ = NULL;
-    }
-}
-
-
-// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
-
-Foam::particleForces::particleForces(const fvMesh& mesh)
-:
-    mesh_(mesh),
-    dict_(dictionary::null),
-    g_(vector::zero),
-    gradUPtr_(NULL),
-    HdotGradHInterPtr_(NULL),
-    gravity_(false),
-    virtualMass_(false),
-    Cvm_(0.0),
-    pressureGradient_(false),
-    paramagnetic_(false),
-    magneticSusceptibility_(0.0),
-    refFrame_(rfInertial),
-    UName_("undefined_UName"),
-    HdotGradHName_("undefined_HdotGradHName")
-{}
-
-
-Foam::particleForces::particleForces
-(
-    const fvMesh& mesh,
-    const dictionary& dict,
-    const vector& g,
-    const bool readFields
-)
-:
-    mesh_(mesh),
-    dict_(dict.subOrEmptyDict("particleForces")),
-    g_(g),
-    gradUPtr_(NULL),
-    HdotGradHInterPtr_(NULL),
-    gravity_(false),
-    virtualMass_(false),
-    Cvm_(0.0),
-    pressureGradient_(false),
-    paramagnetic_(false),
-    magneticSusceptibility_(0.0),
-    refFrame_(rfInertial),
-    UName_(dict_.lookupOrDefault<word>("UName", "U")),
-    HdotGradHName_(dict_.lookupOrDefault<word>("HdotGradHName", "HdotGradH"))
-{
-    if (readFields)
-    {
-        dict_.lookup("gravity") >> gravity_;
-        dict_.lookup("virtualMass") >> virtualMass_;
-        dict_.lookup("pressureGradient") >> pressureGradient_;
-        dict_.lookup("paramagnetic") >> paramagnetic_;
-
-        if (virtualMass_)
-        {
-            dict_.lookup("Cvm") >> Cvm_;
-        }
-
-        if (paramagnetic_)
-        {
-            dict_.lookup("magneticSusceptibility") >> magneticSusceptibility_;
-        }
-    }
-
-    if (dict_.found("referenceFrame"))
-    {
-        word rf(dict_.lookup("referenceFrame"));
-
-        if (rf == "SRF")
-        {
-            refFrame_ = rfSRF;
-        }
-        else if (rf != "inertial")
-        {
-            FatalErrorIn
-            (
-                "Foam::particleForces::particleForces"
-                "("
-                    "const fvMesh&, "
-                    "const dictionary&, "
-                    "const vector&, "
-                    "const bool"
-                ")"
-            )
-                << "Unknown referenceFrame, options are inertial and SRF."
-                << abort(FatalError);
-        }
-    }
-}
-
-
-Foam::particleForces::particleForces(const particleForces& f)
-:
-    mesh_(f.mesh_),
-    dict_(f.dict_),
-    g_(f.g_),
-    gradUPtr_(f.gradUPtr_),
-    HdotGradHInterPtr_(f.HdotGradHInterPtr_),
-    gravity_(f.gravity_),
-    virtualMass_(f.virtualMass_),
-    Cvm_(f.Cvm_),
-    pressureGradient_(f.pressureGradient_),
-    paramagnetic_(f.paramagnetic_),
-    magneticSusceptibility_(f.magneticSusceptibility_),
-    refFrame_(f.refFrame_),
-    UName_(f.UName_),
-    HdotGradHName_(f.HdotGradHName_)
-{}
-
-
-// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
-
-Foam::particleForces::~particleForces()
-{
-    deleteFields();
-}
-
-
-// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
-
-const Foam::dictionary& Foam::particleForces::dict() const
-{
-    return dict_;
-}
-
-
-const Foam::vector& Foam::particleForces::g() const
-{
-    return g_;
-}
-
-
-Foam::Switch Foam::particleForces::gravity() const
-{
-    return gravity_;
-}
-
-
-Foam::Switch Foam::particleForces::virtualMass() const
-{
-    return virtualMass_;
-}
-
-
-Foam::scalar Foam::particleForces::Cvm() const
-{
-    return Cvm_;
-}
-
-
-Foam::Switch Foam::particleForces::pressureGradient() const
-{
-    return pressureGradient_;
-}
-
-
-Foam::Switch Foam::particleForces::paramagnetic() const
-{
-    return paramagnetic_;
-}
-
-
-Foam::scalar Foam::particleForces::magneticSusceptibility() const
-{
-    return magneticSusceptibility_;
-}
-
-
-const Foam::word& Foam::particleForces::UName() const
-{
-    return UName_;
-}
-
-
-const Foam::word& Foam::particleForces::HdotGradHName() const
-{
-    return HdotGradHName_;
-}
-
-
-void Foam::particleForces::cacheFields
-(
-    const bool store,
-    const dictionary& interpolationSchemes
-)
-{
-    if (store)
-    {
-        if (pressureGradient_)
-        {
-            const volVectorField& U =
-                mesh_.lookupObject<volVectorField>(UName_);
-
-            gradUPtr_ = fvc::grad(U).ptr();
-        }
-
-        if (paramagnetic_)
-        {
-            const volVectorField& HdotGradH =
-                mesh_.lookupObject<volVectorField>(HdotGradHName_);
-
-            HdotGradHInterPtr_ = interpolation<vector>::New
-            (
-                interpolationSchemes,
-                HdotGradH
-            ).ptr();
-        }
-    }
-    else
-    {
-        deleteFields();
-    }
-}
-
-
-Foam::vector Foam::particleForces::calcCoupled
-(
-    const vector& position,
-    const tetIndices& tetIs,
-    const scalar dt,
-    const scalar rhoc,
-    const scalar rho,
-    const vector& Uc,
-    const vector& U,
-    const scalar d
-) const
-{
-    vector accelTot = vector::zero;
-
-    // Virtual mass force
-    if (virtualMass_)
-    {
-        notImplemented
-        (
-            "Foam::particleForces::calcCoupled(...) - virtual mass force"
-        );
-//        accelTot += Cvm_*rhoc/rho*d(Uc - U)/dt;
-    }
-
-    // Pressure gradient force
-    if (pressureGradient_)
-    {
-        const volTensorField& gradU = *gradUPtr_;
-        accelTot += rhoc/rho*(U & gradU[tetIs.cell()]);
-    }
-
-    return accelTot;
-}
-
-
-Foam::vector Foam::particleForces::calcNonCoupled
-(
-    const vector& position,
-    const tetIndices& tetIs,
-    const scalar dt,
-    const scalar rhoc,
-    const scalar rho,
-    const vector& Uc,
-    const vector& U,
-    const scalar d
-) const
-{
-    vector accelTot = vector::zero;
-
-    // Gravity force
-    if (gravity_)
-    {
-        accelTot += g_*(1.0 - rhoc/rho);
-    }
-
-    // Magnetic field force
-
-    if (paramagnetic_)
-    {
-        const interpolation<vector>& HdotGradHInter = *HdotGradHInterPtr_;
-
-        accelTot +=
-            3.0*constant::electromagnetic::mu0.value()/rho
-           *magneticSusceptibility_/(magneticSusceptibility_ + 3)
-           *HdotGradHInter.interpolate(position, tetIs);
-
-        // force is:
-
-        // 4.0
-        // *constant::mathematical::pi
-        // *constant::electromagnetic::mu0.value()
-        // *pow3(d/2)
-        // *magneticSusceptibility_/(magneticSusceptibility_ + 3)
-        // *HdotGradH[cellI];
-
-        // which is divided by mass (pi*d^3*rho/6) to produce
-        // acceleration
-    }
-
-    if (refFrame_ == rfSRF)
-    {
-        const SRF::SRFModel& srf =
-            mesh_.lookupObject<SRF::SRFModel>("SRFProperties");
-
-        const vector& omega = srf.omega().value();
-        const vector& axis = srf.axis();
-
-        vector r = position - axis*(axis & position);
-
-        // Coriolis and centrifugal acceleration terms
-        accelTot += 2*(U ^ omega) + (omega ^ (r ^ omega));
-    }
-
-    return accelTot;
-}
-
-
-// ************************************************************************* //

src/lagrangian/intermediate/particleForces/particleForces.H

@@ -1,229 +0,0 @@
-/*---------------------------------------------------------------------------*\
-  =========                 |
-  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
-   \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2008-2011 OpenCFD Ltd.
-     \\/     M anipulation  |
--------------------------------------------------------------------------------
-License
-    This file is part of OpenFOAM.
-
-    OpenFOAM is free software: you can redistribute it and/or modify it
-    under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
-    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-    for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
-
-Class
-    Foam::particleForces
-
-Description
-    Provides a mechanism to calculate particle forces
-    Note: forces are force per unit mass (accelerations)
-
-SourceFiles
-    particleForces.C
-
-\*---------------------------------------------------------------------------*/
-
-#ifndef particleForces_H
-#define particleForces_H
-
-#include "dictionary.H"
-#include "Switch.H"
-#include "vector.H"
-#include "volFieldsFwd.H"
-#include "interpolation.H"
-#include "tetIndices.H"
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-namespace Foam
-{
-
-// Forward class declarations
-class fvMesh;
-
-/*---------------------------------------------------------------------------*\
-                      Class particleForces Declaration
-\*---------------------------------------------------------------------------*/
-
-class particleForces
-{
-    // Private data
-
-        //- Reference frame type
-        enum refFrame
-        {
-            rfInertial,
-            rfSRF
-        };
-
-        //- Reference to the mesh database
-        const fvMesh& mesh_;
-
-        //- The particleForces dictionary
-        const dictionary dict_;
-
-        //- Gravity
-        const vector g_;
-
-        //- Velocity gradient field
-        const volTensorField* gradUPtr_;
-
-        //- HdotGradH interpolator
-        const interpolation<vector>* HdotGradHInterPtr_;
-
-
-        // Forces to include in particle motion evaluation
-
-            //- Gravity
-            Switch gravity_;
-
-            //- Virtual mass
-            Switch virtualMass_;
-
-            //- Virtual mass force coefficient
-            scalar Cvm_;
-
-            //- Pressure gradient
-            Switch pressureGradient_;
-
-            //- Paramagnetic force
-            Switch paramagnetic_;
-
-            //- Magnetic susceptibility of particle
-            scalar magneticSusceptibility_;
-
-            //- Reference frame accelerations
-            refFrame refFrame_;
-
-
-        // Additional info
-
-            //- Name of velocity field - default = "U"
-            const word UName_;
-
-            //- Name of paramagnetic field strength field - default =
-            //  "HdotGradH"
-            const word HdotGradHName_;
-
-
-    // Private Member Functions
-
-        //- Delete cached carrier fields
-        void deleteFields();
-
-
-public:
-
-    // Constructors
-
-        //- Construct null from mesh reference
-        particleForces(const fvMesh& mesh);
-
-        //- Construct from mesh, dictionary and gravity
-        particleForces
-        (
-            const fvMesh& mesh,
-            const dictionary& dict,
-            const vector& g,
-            const bool readFields = true
-        );
-
-        //- Construct copy
-        particleForces(const particleForces& f);
-
-
-    //- Destructor
-    ~particleForces();
-
-
-    // Member Functions
-
-        // Access
-
-            //- Return the particleForces dictionary
-            const dictionary& dict() const;
-
-            //- Return the gravity vector
-            const vector& g() const;
-
-            //- Return gravity force activate switch
-            Switch gravity() const;
-
-            //- Return virtual mass force activate switch
-            Switch virtualMass() const;
-
-            //- Return virtual mass force coefficient
-            scalar Cvm() const;
-
-            //- Return pressure gradient force activate switch
-            Switch pressureGradient() const;
-
-            //- Return name of velocity field
-            const word& UName() const;
-
-            //- Return paramagnetic force activate switch
-            Switch paramagnetic() const;
-
-            //- Return magnetic susceptibility
-            scalar magneticSusceptibility() const;
-
-            //- Return name of paramagnetic field strength field
-            const word& HdotGradHName() const;
-
-
-       // Evaluation
-
-            //- Cache carrier fields
-            void cacheFields
-            (
-                const bool store,
-                const dictionary& interpolationSchemes
-            );
-
-            //- Calculate action/reaction forces between carrier and particles
-            vector calcCoupled
-            (
-                const vector& position,
-                const tetIndices& tetIs,
-                const scalar dt,
-                const scalar rhoc,
-                const scalar rho,
-                const vector& Uc,
-                const vector& U,
-                const scalar d
-            ) const;
-
-            //- Calculate external forces applied to the particles
-            vector calcNonCoupled
-            (
-                const vector& position,
-                const tetIndices& tetIs,
-                const scalar dt,
-                const scalar rhoc,
-                const scalar rho,
-                const vector& Uc,
-                const vector& U,
-                const scalar d
-            ) const;
-};
-
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-} // End namespace Foam
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-#endif
-
-// ************************************************************************* //

src/lagrangian/intermediate/submodels/ForceTypes/ParticleForceList/ParticleForceList.C

@@ -0,0 +1,155 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "ParticleForceList.H"
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::ParticleForceList<CloudType>::ParticleForceList
+(
+    CloudType& owner,
+    const fvMesh& mesh
+)
+:
+    PtrList<ParticleForce<CloudType> >(),
+    owner_(owner),
+    mesh_(mesh),
+    dict_(dictionary::null)
+{}
+
+
+template<class CloudType>
+Foam::ParticleForceList<CloudType>::ParticleForceList
+(
+    CloudType& owner,
+    const fvMesh& mesh,
+    const dictionary& dict,
+    const bool readFields
+)
+:
+    PtrList<ParticleForce<CloudType> >(),
+    owner_(owner),
+    mesh_(mesh),
+    dict_(dict)
+{
+    if (readFields)
+    {
+        const wordList models(dict.lookup("activeForces"));
+
+        Info<< "Constructing particle forces" << endl;
+        if (models.size() > 0)
+        {
+            this->setSize(models.size());
+            forAll(models, i)
+            {
+                set
+                (
+                    i,
+                    ParticleForce<CloudType>::New(owner, mesh, dict, models[i])
+                );
+            }
+        }
+        else
+        {
+            Info<< "    none" << endl;
+        }
+    }
+}
+
+
+template<class CloudType>
+Foam::ParticleForceList<CloudType>::ParticleForceList
+(
+    const ParticleForceList& pf
+)
+:
+    PtrList<ParticleForce<CloudType> >(pf),
+    owner_(pf.owner_),
+    mesh_(pf.mesh_),
+    dict_(pf.dict_)
+{}
+
+
+// * * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::ParticleForceList<CloudType>::~ParticleForceList()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class CloudType>
+void Foam::ParticleForceList<CloudType>::cacheFields(const bool store)
+{
+    forAll(*this, i)
+    {
+        this->operator[](i).cacheFields(store);
+    }
+}
+
+
+template<class CloudType>
+Foam::forceSuSp Foam::ParticleForceList<CloudType>::calcCoupled
+(
+    const typename CloudType::parcelType& p,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
+{
+    forceSuSp value(vector::zero, 0.0);
+    forAll(*this, i)
+    {
+        value += this->operator[](i).calcCoupled(p, dt, Re, rhoc, muc);
+    }
+
+    return value;
+}
+
+
+template<class CloudType>
+Foam::forceSuSp Foam::ParticleForceList<CloudType>::calcNonCoupled
+(
+    const typename CloudType::parcelType& p,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
+{
+    forceSuSp value(vector::zero, 0.0);
+    forAll(*this, i)
+    {
+        value += this->operator[](i).calcNonCoupled(p, dt, Re, rhoc, muc);
+    }
+
+    return value;
+}
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/ForceTypes/ParticleForceList/ParticleForceList.H

@@ -0,0 +1,152 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::ParticleForceList
+
+Description
+    List of particle forces
+
+SourceFiles
+    ParticleForceListI.H
+    ParticleForceList.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef ParticleForceList_H
+#define ParticleForceList_H
+
+#include "ParticleForce.H"
+#include "forceSuSp.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                      Class ParticleForceList Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class CloudType>
+class ParticleForceList
+:
+    public PtrList<ParticleForce<CloudType> >
+{
+    // Private data
+
+        //- Reference to the owner cloud
+        CloudType& owner_;
+
+        //- Reference to the mesh database
+        const fvMesh& mesh_;
+
+        //- Forces dictionary
+        const dictionary dict_;
+
+
+public:
+
+    // Constructors
+
+        //- Null constructor
+        ParticleForceList(CloudType& owner, const fvMesh& mesh);
+
+        //- Construct from mesh
+        ParticleForceList
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const bool readFields
+        );
+
+        //- Construct copy
+        ParticleForceList(const ParticleForceList& pfl);
+
+
+    //- Destructor
+    virtual ~ParticleForceList();
+
+
+    // Member Functions
+
+        // Access
+
+            //- Return const access to the cloud owner
+            inline const CloudType& owner() const;
+
+            //- Return refernce to the cloud owner
+            inline CloudType& owner();
+
+            //- Return the mesh database
+            inline const fvMesh& mesh() const;
+
+            //- Return the forces dictionary
+            inline const dictionary& dict() const;
+
+
+        // Evaluation
+
+            //- Cache fields
+            virtual void cacheFields(const bool store);
+
+            //- Calculate the coupled force
+            virtual forceSuSp calcCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
+
+            //- Calculate the non-coupled force
+            virtual forceSuSp calcNonCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "ParticleForceListI.H"
+
+#ifdef NoRepository
+    #include "ParticleForceList.C"
+#endif
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/ForceTypes/ParticleForceList/ParticleForceListI.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2008-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,30 +23,34 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef makeParcelDragModels_H
-#define makeParcelDragModels_H
-
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-#include "KinematicCloud.H"
+template<class CloudType>
-
+inline const CloudType& Foam::ParticleForceList<CloudType>::owner() const
-#include "NoDrag.H"
+{
-#include "NonSphereDrag.H"
+    return owner_;
-#include "SphereDrag.H"
+}
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-#define makeParcelDragModels(ParcelType)                                     \
-                                                                             \
-    makeDragModel(KinematicCloud<ParcelType>);                               \
-                                                                             \
-    makeDragModelType(NoDrag, KinematicCloud, ParcelType);                   \
-    makeDragModelType(NonSphereDrag, KinematicCloud, ParcelType);            \
-    makeDragModelType(SphereDrag, KinematicCloud, ParcelType);
 
 
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+template<class CloudType>
+inline CloudType& Foam::ParticleForceList<CloudType>::owner()
+{
+    return owner_;
+}
+
+
+template<class CloudType>
+inline const Foam::fvMesh& Foam::ParticleForceList<CloudType>::mesh() const
+{
+    return mesh_;
+}
+
+
+template<class CloudType>
+inline const Foam::dictionary& Foam::ParticleForceList<CloudType>::dict() const
+{
+    return dict_;
+}
 
-#endif
 
 // ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/DragModel/DragModel/DragModel.H

@@ -1,157 +0,0 @@
-/*---------------------------------------------------------------------------*\
-  =========                 |
-  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
-   \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
-     \\/     M anipulation  |
--------------------------------------------------------------------------------
-License
-    This file is part of OpenFOAM.
-
-    OpenFOAM is free software: you can redistribute it and/or modify it
-    under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
-    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-    for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
-
-Class
-    Foam::DragModel
-
-Description
-    Templated drag model class
-
-SourceFiles
-    DragModel.C
-    DragModelNew.C
-
-\*---------------------------------------------------------------------------*/
-
-#ifndef DragModel_H
-#define DragModel_H
-
-#include "IOdictionary.H"
-#include "autoPtr.H"
-#include "runTimeSelectionTables.H"
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-namespace Foam
-{
-
-/*---------------------------------------------------------------------------*\
-                          Class DragModel Declaration
-\*---------------------------------------------------------------------------*/
-
-template<class CloudType>
-class DragModel
-:
-    public SubModelBase<CloudType>
-{
-public:
-
-    //- Runtime type information
-    TypeName("DragModel");
-
-    //- Declare runtime constructor selection table
-    declareRunTimeSelectionTable
-    (
-        autoPtr,
-        DragModel,
-        dictionary,
-        (
-            const dictionary& dict,
-            CloudType& owner
-        ),
-        (dict, owner)
-    );
-
-
-    // Constructors
-
-        //- Construct null from owner
-        DragModel(CloudType& owner);
-
-        //- Construct from components
-        DragModel
-        (
-            const dictionary& dict,
-            CloudType& owner,
-            const word& type
-        );
-
-        //- Construct copy
-        DragModel(const DragModel<CloudType>& dm);
-
-        //- Construct and return a clone
-        virtual autoPtr<DragModel<CloudType> > clone() const
-        {
-            return autoPtr<DragModel<CloudType> >
-            (
-                new DragModel<CloudType>(*this)
-            );
-        }
-
-
-    //- Destructor
-    virtual ~DragModel();
-
-
-    //- Selector
-    static autoPtr<DragModel<CloudType> > New
-    (
-        const dictionary& dict,
-        CloudType& cloud
-    );
-
-
-    // Member Functions
-
-        //- Return drag coefficient
-        virtual scalar Cd(const scalar Re) const;
-
-        //- Return momentum transfer coefficient
-        //  Drag force per unit particle surface area = utc(U - Up)
-        scalar utc(const scalar Re, const scalar d, const scalar mu) const;
-};
-
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-} // End namespace Foam
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-#define makeDragModel(CloudType)                                              \
-                                                                              \
-    defineNamedTemplateTypeNameAndDebug(DragModel<CloudType>, 0);             \
-                                                                              \
-    defineTemplateRunTimeSelectionTable(DragModel<CloudType>, dictionary);
-
-
-#define makeDragModelType(SS, CloudType, ParcelType)                          \
-                                                                              \
-    defineNamedTemplateTypeNameAndDebug(SS<CloudType<ParcelType> >, 0);       \
-                                                                              \
-    DragModel<CloudType<ParcelType> >::                                       \
-        adddictionaryConstructorToTable<SS<CloudType<ParcelType> > >          \
-            add##SS##CloudType##ParcelType##ConstructorToTable_;
-
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-#ifdef NoRepository
-#   include "DragModel.C"
-#endif
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-#endif
-
-// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/DragForce/NonSphereDrag/NonSphereDragForce.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2010-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2010-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,19 +23,30 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "NonSphereDrag.H"
+#include "NonSphereDragForce.H"
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::scalar Foam::NonSphereDragForce<CloudType>::Cd(const scalar Re) const
+{
+    return 24.0/(Re + ROOTVSMALL)*(1.0 + a_*pow(Re, b_)) + Re*c_/(Re + d_);
+}
+
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::NonSphereDrag<CloudType>::NonSphereDrag
+Foam::NonSphereDragForce<CloudType>::NonSphereDragForce
 (
+    CloudType& owner,
+    const fvMesh& mesh,
     const dictionary& dict,
-    CloudType& owner
+    const word& forceType
 )
 :
-    DragModel<CloudType>(dict, owner, typeName),
+    ParticleForce<CloudType>(owner, mesh, dict, forceType),
-    phi_(readScalar(this->coeffDict().lookup("phi"))),
+    phi_(readScalar(this->coeffs().lookup("phi"))),
     a_(exp(2.3288 - 6.4581*phi_ + 2.4486*sqr(phi_))),
     b_(0.0964 + 0.5565*phi_),
     c_(exp(4.9050 - 13.8944*phi_ + 18.4222*sqr(phi_) - 10.2599*pow3(phi_))),
@@ -58,33 +69,44 @@ Foam::NonSphereDrag<CloudType>::NonSphereDrag
 
 
 template<class CloudType>
-Foam::NonSphereDrag<CloudType>::NonSphereDrag
+Foam::NonSphereDragForce<CloudType>::NonSphereDragForce
 (
-    const NonSphereDrag<CloudType>& dm
+    const NonSphereDragForce<CloudType>& df
 )
 :
-    DragModel<CloudType>(dm),
+    ParticleForce<CloudType>(df),
-    phi_(dm.phi_),
+    phi_(df.phi_),
-    a_(dm.a_),
+    a_(df.a_),
-    b_(dm.b_),
+    b_(df.b_),
-    c_(dm.c_),
+    c_(df.c_),
-    d_(dm.d_)
+    d_(df.d_)
 {}
 
 
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::NonSphereDrag<CloudType>::~NonSphereDrag()
+Foam::NonSphereDragForce<CloudType>::~NonSphereDragForce()
 {}
 
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::scalar Foam::NonSphereDrag<CloudType>::Cd(const scalar Re) const
+Foam::forceSuSp Foam::NonSphereDragForce<CloudType>::calcNonCoupled
+(
+    const typename CloudType::parcelType& p,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
 {
-    return 24.0/(Re + ROOTVSMALL)*(1.0 + a_*pow(Re, b_)) + Re*c_/(Re + d_);
+    forceSuSp value(vector::zero, 0.0);
+
+    value.Sp()  = Cd(Re)*Re/p.d()*muc/8.0 + ROOTVSMALL;
+
+    return value;
 }
 
 

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/DragForce/NonSphereDrag/NonSphereDragForce.H

@@ -57,31 +57,28 @@ Description
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef NonSphereDrag_H
+#ifndef NonSphereDragForce_H
-#define NonSphereDrag_H
+#define NonSphereDragForce_H
 
-#include "DragModel.H"
+#include "ParticleForce.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
 /*---------------------------------------------------------------------------*\
-                        Class NonSphereDrag Declaration
+                    Class NonSphereDragForce Declaration
 \*---------------------------------------------------------------------------*/
 
 template<class CloudType>
-class NonSphereDrag
+class NonSphereDragForce
 :
-    public DragModel<CloudType>
+    public ParticleForce<CloudType>
 {
 protected:
 
     // Protected Data
 
-        //- Flag to indicate `Simple model'
-        bool simpleModel_;
-
         //- Ratio of surface of sphere having same volume as particle to
         //  actual surface area of particle (0 < phi <= 1)
         scalar phi_;
@@ -98,38 +95,59 @@ protected:
             scalar d_;
 
 
+    // Private Member Functions
+
+        //- Drag coefficient
+        scalar Cd(const scalar Re) const;
+
+
 public:
 
     //- Runtime type information
-    TypeName("NonSphereDrag");
+    TypeName("nonSphereDrag");
 
 
     // Constructors
 
-        //- Construct from dictionary
+        //- Construct from mesh
-        NonSphereDrag(const dictionary& dict, CloudType& owner);
+        NonSphereDragForce
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const word& forceType
+        );
 
         //- Construct copy
-        NonSphereDrag(const NonSphereDrag<CloudType>& dm);
+        NonSphereDragForce(const NonSphereDragForce<CloudType>& df);
 
         //- Construct and return a clone
-        virtual autoPtr<DragModel<CloudType> > clone() const
+        virtual autoPtr<ParticleForce<CloudType> > clone() const
         {
-            return autoPtr<DragModel<CloudType> >
+            return autoPtr<ParticleForce<CloudType> >
             (
-                new NonSphereDrag<CloudType>(*this)
+                new NonSphereDragForce<CloudType>(*this)
             );
         }
 
 
     //- Destructor
-    virtual ~NonSphereDrag();
+    virtual ~NonSphereDragForce();
 
 
     // Member Functions
 
-        //- Return drag coefficient
+        // Evaluation
-        scalar Cd(const scalar Re) const;
+
+            //- Calculate the non-coupled force
+            virtual forceSuSp calcNonCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
 };
 
 
@@ -140,7 +158,7 @@ public:
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 #ifdef NoRepository
-#   include "NonSphereDrag.C"
+#   include "NonSphereDragForce.C"
 #endif
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/DragForce/SphereDrag/SphereDragForce.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2010-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,39 +23,12 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "SphereDrag.H"
+#include "SphereDragForce.H"
 
-// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::SphereDrag<CloudType>::SphereDrag
+Foam::scalar Foam::SphereDragForce<CloudType>::Cd(const scalar Re) const
-(
-    const dictionary&,
-    CloudType& owner
-)
-:
-    DragModel<CloudType>(owner)
-{}
-
-
-template<class CloudType>
-Foam::SphereDrag<CloudType>::SphereDrag(const SphereDrag<CloudType>& dm)
-:
-    DragModel<CloudType>(dm)
-{}
-
-
-// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
-
-template<class CloudType>
-Foam::SphereDrag<CloudType>::~SphereDrag()
-{}
-
-
-// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
-
-template<class CloudType>
-Foam::scalar Foam::SphereDrag<CloudType>::Cd(const scalar Re) const
 {
     scalar Cd;
     if (Re < SMALL)
@@ -75,4 +48,56 @@ Foam::scalar Foam::SphereDrag<CloudType>::Cd(const scalar Re) const
 }
 
 
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::SphereDragForce<CloudType>::SphereDragForce
+(
+    CloudType& owner,
+    const fvMesh& mesh,
+    const dictionary& dict,
+    const word& forceType
+)
+:
+    ParticleForce<CloudType>(owner, mesh, dict, forceType)
+{}
+
+
+template<class CloudType>
+Foam::SphereDragForce<CloudType>::SphereDragForce
+(
+    const SphereDragForce<CloudType>& df
+)
+:
+    ParticleForce<CloudType>(df)
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::SphereDragForce<CloudType>::~SphereDragForce()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::forceSuSp Foam::SphereDragForce<CloudType>::calcNonCoupled
+(
+    const typename CloudType::parcelType& p,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
+{
+    forceSuSp value(vector::zero, 0.0);
+
+    value.Sp()  = Cd(Re)*Re/p.d()*muc/8.0 + ROOTVSMALL;
+
+    return value;
+}
+
+
 // ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/DragForce/SphereDrag/SphereDragForce.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2010-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,63 +22,84 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::SphereDrag
+    Foam::SphereDragForce
 
 Description
     Drag model based on assumption of solid spheres
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef SphereDrag_H
+#ifndef SphereDragForce_H
-#define SphereDrag_H
+#define SphereDragForce_H
 
-#include "DragModel.H"
+#include "ParticleForce.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
 /*---------------------------------------------------------------------------*\
-                         Class SphereDrag Declaration
+                       Class SphereDragForce Declaration
 \*---------------------------------------------------------------------------*/
 
 template<class CloudType>
-class SphereDrag
+class SphereDragForce
 :
-    public DragModel<CloudType>
+    public ParticleForce<CloudType>
 {
+    // Private Member Functions
+
+        //- Drag coefficient
+        scalar Cd(const scalar Re) const;
+
+
 public:
 
     //- Runtime type information
-    TypeName("SphereDrag");
+    TypeName("sphereDrag");
 
 
     // Constructors
 
-        //- Construct from dictionary
+        //- Construct from mesh
-        SphereDrag(const dictionary& dict, CloudType& owner);
+        SphereDragForce
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const word& forceType
+        );
 
         //- Construct copy
-        SphereDrag(const SphereDrag<CloudType>& dm);
+        SphereDragForce(const SphereDragForce<CloudType>& df);
 
         //- Construct and return a clone
-        virtual autoPtr<DragModel<CloudType> > clone() const
+        virtual autoPtr<ParticleForce<CloudType> > clone() const
         {
-            return autoPtr<DragModel<CloudType> >
+            return autoPtr<ParticleForce<CloudType> >
             (
-                new SphereDrag<CloudType>(*this)
+                new SphereDragForce<CloudType>(*this)
             );
         }
 
 
     //- Destructor
-    virtual ~SphereDrag();
+    virtual ~SphereDragForce();
 
 
     // Member Functions
 
-        //- Return drag coefficient
+        // Evaluation
-        scalar Cd(const scalar Re) const;
+
+            //- Calculate the non-coupled force
+            virtual forceSuSp calcNonCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
 };
 
 
@@ -89,7 +110,7 @@ public:
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 #ifdef NoRepository
-#   include "SphereDrag.C"
+#   include "SphereDragForce.C"
 #endif
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/Gravity/GravityForce.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,73 +23,57 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "DragModel.H"
+#include "GravityForce.H"
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::DragModel<CloudType>::DragModel(CloudType& owner)
+Foam::GravityForce<CloudType>::GravityForce
-:
-    SubModelBase<CloudType>(owner)
-{}
-
-
-template<class CloudType>
-Foam::DragModel<CloudType>::DragModel
 (
-    const dictionary& dict,
     CloudType& owner,
-    const word& type
+    const fvMesh& mesh,
+    const dictionary& dict,
+    const word& forceType
 )
 :
-    SubModelBase<CloudType>(owner, dict, type)
+    ParticleForce<CloudType>(owner, mesh, dict, forceType),
+    g_(owner.g().value())
 {}
 
 
 template<class CloudType>
-Foam::DragModel<CloudType>::DragModel(const DragModel<CloudType>& dm)
+Foam::GravityForce<CloudType>::GravityForce(const GravityForce& gf)
 :
-    SubModelBase<CloudType>(dm)
+    ParticleForce<CloudType>(gf),
+    g_(gf.g_)
 {}
 
 
-// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+// * * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::DragModel<CloudType>::~DragModel()
+Foam::GravityForce<CloudType>::~GravityForce()
 {}
 
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::scalar Foam::DragModel<CloudType>::Cd(const scalar) const
+Foam::forceSuSp Foam::GravityForce<CloudType>::calcNonCoupled
-{
-    notImplemented
-    (
-        "Foam::scalar Foam::DragModel<CloudType>::Cd(const scalar) const"
-    );
-    return 0.0;
-}
-
-
-template<class CloudType>
-Foam::scalar Foam::DragModel<CloudType>::utc
 (
+    const typename CloudType::parcelType& p,
+    const scalar dt,
     const scalar Re,
-    const scalar d,
+    const scalar rhoc,
-    const scalar mu
+    const scalar muc
 ) const
 {
-    const scalar Cd = this->Cd(Re);
+    forceSuSp value(vector::zero, 0.0);
 
-    return Cd*Re/d*mu/8.0;
+    value.Su() = g_*(1.0 - rhoc/p.rho());
+
+    return value;
 }
 
 
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-#include "DragModelNew.C"
-
 // ************************************************************************* //
-

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/Gravity/GravityForce.H

@@ -0,0 +1,135 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::GravityForce
+
+Description
+    Calculates particle gravity force
+
+SourceFiles
+    GravityForceI.H
+    GravityForce.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef GravityForce_H
+#define GravityForce_H
+
+#include "ParticleForce.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+class fvMesh;
+
+/*---------------------------------------------------------------------------*\
+                       Class GravityForce Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class CloudType>
+class GravityForce
+:
+    public ParticleForce<CloudType>
+{
+    // Private data
+
+        //- Reference to the acceleration due to gravity
+        const vector& g_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("gravity");
+
+
+    // Constructors
+
+        //- Construct from mesh
+        GravityForce
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const word& forceType
+        );
+
+        //- Construct copy
+        GravityForce(const GravityForce& gf);
+
+        //- Construct and return a clone
+        virtual autoPtr<ParticleForce<CloudType> > clone() const
+        {
+            return autoPtr<ParticleForce<CloudType> >
+            (
+                new GravityForce<CloudType>(*this)
+            );
+        }
+
+
+    //- Destructor
+    virtual ~GravityForce();
+
+
+    // Member Functions
+
+        // Access
+
+            //- Return the the acceleration due to gravity
+            inline const vector& g() const;
+
+
+        // Evaluation
+
+            //- Calculate the non-coupled force
+            virtual forceSuSp calcNonCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "GravityForceI.H"
+
+#ifdef NoRepository
+    #include "GravityForce.C"
+#endif
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/Gravity/GravityForceI.H

@@ -0,0 +1,35 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+template<class CloudType>
+inline const Foam::vector& Foam::GravityForce<CloudType>::g() const
+{
+    return g_;
+}
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/Paramagnetic/ParamagneticForce.C

@@ -0,0 +1,120 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "ParamagneticForce.H"
+#include "demandDrivenData.H"
+#include "electromagneticConstants.H"
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::ParamagneticForce<CloudType>::ParamagneticForce
+(
+    CloudType& owner,
+    const fvMesh& mesh,
+    const dictionary& dict,
+    const word& forceType
+)
+:
+    ParticleForce<CloudType>(owner, mesh, dict, forceType),
+    HdotGradHName_
+    (
+        this->coeffs().template lookupOrDefault<word>("HdotGradH", "HdotGradH")
+    ),
+    HdotGradHInterpPtr_(NULL),
+    magneticSusceptibility_
+    (
+        readScalar(this->coeffs().lookup("magneticSusceptibility"))
+    )
+{}
+
+
+template<class CloudType>
+Foam::ParamagneticForce<CloudType>::ParamagneticForce
+(
+    const ParamagneticForce& pf
+)
+:
+    ParticleForce<CloudType>(pf),
+    HdotGradHName_(pf.HdotGradHName_),
+    HdotGradHInterpPtr_(pf.HdotGradHInterpPtr_),
+    magneticSusceptibility_(pf.magneticSusceptibility_)
+{}
+
+
+// * * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::ParamagneticForce<CloudType>::~ParamagneticForce()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class CloudType>
+void Foam::ParamagneticForce<CloudType>::cacheFields(const bool store)
+{
+    if (store)
+    {
+        const volVectorField& HdotGradH =
+            this->mesh().template lookupObject<volVectorField>(HdotGradHName_);
+
+        HdotGradHInterpPtr_ = interpolation<vector>::New
+        (
+            this->owner().solution().interpolationSchemes(),
+            HdotGradH
+        ).ptr();
+    }
+    else
+    {
+        deleteDemandDrivenData(HdotGradHInterpPtr_);
+    }
+}
+
+
+template<class CloudType>
+Foam::forceSuSp Foam::ParamagneticForce<CloudType>::calcNonCoupled
+(
+    const typename CloudType::parcelType& p,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
+{
+    forceSuSp value(vector::zero, 0.0);
+
+    const interpolation<vector>& HdotGradHInterp = *HdotGradHInterpPtr_;
+
+    value.Su()=
+        3.0*constant::electromagnetic::mu0.value()/p.rho()
+       *magneticSusceptibility_/(magneticSusceptibility_ + 3)
+       *HdotGradHInterp.interpolate(p.position(), p.currentTetIndices());
+
+    return value;
+}
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/Paramagnetic/ParamagneticForce.H

@@ -0,0 +1,148 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::ParamagneticForce
+
+Description
+    Calculates particle paramagnetic (magnetic field) force
+
+SourceFiles
+    ParamagneticForceI.H
+    ParamagneticForce.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef ParamagneticForce_H
+#define ParamagneticForce_H
+
+#include "ParticleForce.H"
+#include "interpolation.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+class fvMesh;
+
+/*---------------------------------------------------------------------------*\
+                       Class ParamagneticForce Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class CloudType>
+class ParamagneticForce
+:
+    public ParticleForce<CloudType>
+{
+    // Private data
+
+        //- Name of paramagnetic field strength field - default = "HdotGradH"
+        const word HdotGradHName_;
+
+        //- HdotGradH interpolator
+        const interpolation<vector>* HdotGradHInterpPtr_;
+
+        //- Magnetic susceptibility of particle
+        const scalar magneticSusceptibility_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("paramagnetic");
+
+
+    // Constructors
+
+        //- Construct from mesh
+        ParamagneticForce
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const word& forceType
+        );
+
+        //- Construct copy
+        ParamagneticForce(const ParamagneticForce& gf);
+
+        //- Construct and return a clone
+        virtual autoPtr<ParticleForce<CloudType> > clone() const
+        {
+            return autoPtr<ParticleForce<CloudType> >
+            (
+                new ParamagneticForce<CloudType>(*this)
+            );
+        }
+
+
+    //- Destructor
+    virtual ~ParamagneticForce();
+
+
+    // Member Functions
+
+        // Access
+
+            //- Return the name of paramagnetic field strength field
+            const word& HdotGradHName() const;
+
+            //- Return the magnetic susceptibility of particle
+            scalar magneticSusceptibility() const;
+
+
+        // Evaluation
+
+            //- Cache fields
+            virtual void cacheFields(const bool store);
+
+            //- Calculate the non-coupled force
+            virtual forceSuSp calcNonCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "ParamagneticForceI.H"
+
+#ifdef NoRepository
+    #include "ParamagneticForce.C"
+#endif
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/Paramagnetic/ParamagneticForceI.H

@@ -0,0 +1,44 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+template<class CloudType>
+inline const Foam::word&
+Foam::ParamagneticForce<CloudType>::HdotGradHName() const
+{
+    return HdotGradHName_;
+}
+
+
+template<class CloudType>
+inline Foam::scalar
+Foam::ParamagneticForce<CloudType>::magneticSusceptibility() const
+{
+    return magneticSusceptibility_;
+}
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/ParticleForce/ParticleForce.C

@@ -0,0 +1,110 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "ParticleForce.H"
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::ParticleForce<CloudType>::ParticleForce
+(
+    CloudType& owner,
+    const fvMesh& mesh,
+    const dictionary& dict,
+    const word& forceType
+)
+:
+    owner_(owner),
+    mesh_(mesh),
+    dict_(dict),
+    coeffs_(dict.subOrEmptyDict(forceType + "Coeffs"))
+{}
+
+
+template<class CloudType>
+Foam::ParticleForce<CloudType>::ParticleForce(const ParticleForce& pf)
+:
+    owner_(pf.owner_),
+    mesh_(pf.mesh_),
+    dict_(pf.dict_),
+    coeffs_(pf.coeffs_)
+{}
+
+
+// * * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::ParticleForce<CloudType>::~ParticleForce()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class CloudType>
+void Foam::ParticleForce<CloudType>::cacheFields(const bool store)
+{}
+
+
+template<class CloudType>
+Foam::forceSuSp Foam::ParticleForce<CloudType>::calcCoupled
+(
+    const typename CloudType::parcelType&,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
+{
+    forceSuSp value;
+    value.Su() = vector::zero;
+    value.Sp() = 0.0;
+
+    return value;
+}
+
+
+template<class CloudType>
+Foam::forceSuSp Foam::ParticleForce<CloudType>::calcNonCoupled
+(
+    const typename CloudType::parcelType&,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
+{
+    forceSuSp value;
+    value.Su() = vector::zero;
+    value.Sp() = 0.0;
+
+    return value;
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "ParticleForceNew.C"
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/ParticleForce/ParticleForce.H

@@ -0,0 +1,215 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::ParticleForce
+
+Description
+    Abstract base class for particle forces
+
+SourceFiles
+    ParticleForceI.H
+    ParticleForce.C
+    ParticleForceNew.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef ParticleForce_H
+#define ParticleForce_H
+
+#include "dictionary.H"
+#include "forceSuSp.H"
+#include "fvMesh.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                      Class ParticleForce Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class CloudType>
+class ParticleForce
+{
+    // Private data
+
+        //- Reference to the owner cloud
+        CloudType& owner_;
+
+        //- Reference to the mesh database
+        const fvMesh& mesh_;
+
+        //- Forces dictionary
+        const dictionary dict_;
+
+        //- Force coefficients dictaionary
+        const dictionary coeffs_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("particleForce");
+
+    //- Declare runtime constructor selection table
+    declareRunTimeSelectionTable
+    (
+        autoPtr,
+        ParticleForce,
+        dictionary,
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const word& forceType
+        ),
+        (owner, mesh, dict, forceType)
+    );
+
+
+    //- Convenience typedef for return type
+    typedef VectorSpace<Vector<vector>, vector, 2> returnType;
+
+
+    // Constructors
+
+        //- Construct from mesh
+        ParticleForce
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const word& forceType
+        );
+
+        //- Construct copy
+        ParticleForce(const ParticleForce& pf);
+
+        //- Construct and return a clone
+        virtual autoPtr<ParticleForce<CloudType> > clone() const
+        {
+            return autoPtr<ParticleForce<CloudType> >
+            (
+                new ParticleForce<CloudType>(*this)
+            );
+        }
+
+
+    //- Destructor
+    virtual ~ParticleForce();
+
+
+    //- Selector
+    static autoPtr<ParticleForce<CloudType> > New
+    (
+        CloudType& owner,
+        const fvMesh& mesh,
+        const dictionary& dict,
+        const word& forceType
+    );
+
+
+    // Member Functions
+
+        // Access
+
+            //- Return const access to the cloud owner
+            inline const CloudType& owner() const;
+
+            //- Return refernce to the cloud owner
+            inline CloudType& owner();
+
+            //- Return the mesh database
+            inline const fvMesh& mesh() const;
+
+            //- Return the forces dictionary
+            inline const dictionary& dict() const;
+
+            //- Return the force coefficients dictionary
+            inline const dictionary& coeffs() const;
+
+
+        // Evaluation
+
+            //- Cache fields
+            virtual void cacheFields(const bool store);
+
+            //- Calculate the coupled force
+            virtual forceSuSp calcCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
+
+            //- Calculate the non-coupled force
+            virtual forceSuSp calcNonCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "ParticleForceI.H"
+
+#ifdef NoRepository
+    #include "ParticleForce.C"
+#endif
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#define makeParticleForceModel(CloudType)                                     \
+                                                                              \
+    defineNamedTemplateTypeNameAndDebug(ParticleForce<CloudType>, 0);         \
+    defineTemplateRunTimeSelectionTable(ParticleForce<CloudType>, dictionary);
+
+
+#define makeParticleForceModelType(SS, CloudType, ParcelType)                 \
+                                                                              \
+    defineNamedTemplateTypeNameAndDebug(SS<CloudType<ParcelType> >, 0);       \
+                                                                              \
+    ParticleForce<CloudType<ParcelType> >::                                   \
+        adddictionaryConstructorToTable<SS<CloudType<ParcelType> > >          \
+            add##SS##CloudType##ParcelType##ConstructorToTable_;
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+
+#endif
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/ParticleForce/ParticleForceI.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,44 +23,40 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "NoDrag.H"
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::NoDrag<CloudType>::NoDrag(const dictionary& dict, CloudType& owner)
+inline const CloudType& Foam::ParticleForce<CloudType>::owner() const
-:
-    DragModel<CloudType>(owner)
-{}
-
-
-template<class CloudType>
-Foam::NoDrag<CloudType>::NoDrag(const NoDrag<CloudType>& dm)
-:
-    DragModel<CloudType>(dm.owner_)
-{}
-
-
-// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
-
-template<class CloudType>
-Foam::NoDrag<CloudType>::~NoDrag()
-{}
-
-
-// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
-
-template<class CloudType>
-bool Foam::NoDrag<CloudType>::active() const
 {
-    return false;
+    return owner_;
 }
 
 
 template<class CloudType>
-Foam::scalar Foam::NoDrag<CloudType>::Cd(const scalar) const
+inline CloudType& Foam::ParticleForce<CloudType>::owner()
 {
-    return 0.0;
+    return owner_;
+}
+
+
+template<class CloudType>
+inline const Foam::fvMesh& Foam::ParticleForce<CloudType>::mesh() const
+{
+    return mesh_;
+}
+
+
+template<class CloudType>
+inline const Foam::dictionary& Foam::ParticleForce<CloudType>::dict() const
+{
+    return dict_;
+}
+
+
+template<class CloudType>
+inline const Foam::dictionary& Foam::ParticleForce<CloudType>::coeffs() const
+{
+    return coeffs_;
 }
 
 

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/ParticleForce/ParticleForceNew.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,41 +23,55 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "DragModel.H"
+#include "ParticleForce.H"
 
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::autoPtr<Foam::DragModel<CloudType> > Foam::DragModel<CloudType>::New
+Foam::autoPtr<Foam::ParticleForce<CloudType> >
+Foam::ParticleForce<CloudType>::New
 (
+    CloudType& owner,
+    const fvMesh& mesh,
     const dictionary& dict,
-    CloudType& owner
+    const word& forceType
 )
 {
-    const word modelType(dict.lookup("DragModel"));
+    Info<< "    Selecting particle force " << forceType << endl;
-
-    Info<< "Selecting DragModel " << modelType << endl;
 
     typename dictionaryConstructorTable::iterator cstrIter =
-        dictionaryConstructorTablePtr_->find(modelType);
+        dictionaryConstructorTablePtr_->find(forceType);
 
     if (cstrIter == dictionaryConstructorTablePtr_->end())
     {
         FatalErrorIn
         (
-            "DragModel<CloudType>::New"
+            "ParticleForce<CloudType>::New"
             "("
+                "CloudType&, "
+                "const fvMesh&, "
                 "const dictionary&, "
-                "CloudType&"
+                "const word&"
             ")"
-        )   << "Unknown DragModel type "
+        )   << "Unknown particle force type "
-            << modelType << nl << nl
+            << forceType
-            << "Valid DragModel types are:" << nl
+            << ", constructor not in hash table" << nl << nl
+            << "    Valid particle force types are:" << nl
             << dictionaryConstructorTablePtr_->sortedToc()
             << exit(FatalError);
     }
 
-    return autoPtr<DragModel<CloudType> >(cstrIter()(dict, owner));
+    return autoPtr<ParticleForce<CloudType> >
+    (
+        cstrIter()
+        (
+            owner,
+            mesh,
+            dict,
+            forceType
+        )
+    );
+
 }
 
 

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/PressureGradient/PressureGradientForce.C

@@ -0,0 +1,106 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "PressureGradientForce.H"
+#include "fvcGrad.H"
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::PressureGradientForce<CloudType>::PressureGradientForce
+(
+    CloudType& owner,
+    const fvMesh& mesh,
+    const dictionary& dict,
+    const word& forceType
+)
+:
+    ParticleForce<CloudType>(owner, mesh, dict, forceType),
+    UName_(this->coeffs().lookup("U")),
+    gradUPtr_(NULL)
+{}
+
+
+template<class CloudType>
+Foam::PressureGradientForce<CloudType>::PressureGradientForce
+(
+    const PressureGradientForce& pgf
+)
+:
+    ParticleForce<CloudType>(pgf),
+    UName_(pgf.UName_),
+    gradUPtr_(NULL)
+{}
+
+
+// * * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::PressureGradientForce<CloudType>::~PressureGradientForce()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class CloudType>
+void Foam::PressureGradientForce<CloudType>::cacheFields(const bool store)
+{
+    if (store)
+    {
+        const volVectorField& U = this->mesh().template
+            lookupObject<volVectorField>(UName_);
+        gradUPtr_ = fvc::grad(U).ptr();
+    }
+    else
+    {
+        if (gradUPtr_)
+        {
+            delete gradUPtr_;
+            gradUPtr_ = NULL;
+        }
+    }
+}
+
+
+template<class CloudType>
+Foam::forceSuSp Foam::PressureGradientForce<CloudType>::calcCoupled
+(
+    const typename CloudType::parcelType& p,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
+{
+    forceSuSp value(vector::zero, 0.0);
+
+    const volTensorField& gradU = *gradUPtr_;
+    value.Su() = rhoc/p.rho()*(p.U() & gradU[p.cell()]);
+
+    return value;
+}
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/PressureGradient/PressureGradientForce.H

@@ -0,0 +1,140 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::PressureGradientForce
+
+Description
+    Calculates particle pressure gradient force
+
+SourceFiles
+    PressureGradientForceI.H
+    PressureGradientForce.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef PressureGradientForce_H
+#define PressureGradientForce_H
+
+#include "ParticleForce.H"
+#include "volFields.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                    Class PressureGradientForce Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class CloudType>
+class PressureGradientForce
+:
+    public ParticleForce<CloudType>
+{
+    // Private data
+
+        //- Name of velocity field
+        const word UName_;
+
+        //- Velocity gradient field
+        const volTensorField* gradUPtr_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("pressureGradient");
+
+
+    // Constructors
+
+        //- Construct from mesh
+        PressureGradientForce
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const word& forceType
+        );
+
+        //- Construct copy
+        PressureGradientForce(const PressureGradientForce& pgf);
+
+        //- Construct and return a clone
+        virtual autoPtr<ParticleForce<CloudType> > clone() const
+        {
+            return autoPtr<ParticleForce<CloudType> >
+            (
+                new PressureGradientForce<CloudType>(*this)
+            );
+        }
+
+
+    //- Destructor
+    virtual ~PressureGradientForce();
+
+
+    // Member Functions
+
+        // Access
+
+            //- Return const access to the velocity gradient field
+            inline const volTensorField& gradU() const;
+
+
+        // Evaluation
+
+            //- Cache fields
+            virtual void cacheFields(const bool store);
+
+            //- Calculate the non-coupled force
+            virtual forceSuSp calcCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "PressureGradientForceI.H"
+
+#ifdef NoRepository
+    #include "PressureGradientForce.C"
+#endif
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/PressureGradient/PressureGradientForceI.H

@@ -0,0 +1,49 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+template<class CloudType>
+const Foam::volTensorField& Foam::PressureGradientForce<CloudType>::gradU()
+const
+{
+    if (gradUPtr_)
+    {
+        return *gradUPtr_;
+    }
+    else
+    {
+        FatalErrorIn
+        (
+            "const volTensorField& PressureGradientForce<CloudType>::gradU()"
+            "const"
+        )   << "gradU field not allocated" << abort(FatalError);
+
+        return reinterpret_cast<const volTensorField>(0);
+    }
+}
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/SRF/SRFForce.C

@@ -0,0 +1,106 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "SRFForce.H"
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::SRFForce<CloudType>::SRFForce
+(
+    CloudType& owner,
+    const fvMesh& mesh,
+    const dictionary& dict,
+    const word& forceType
+)
+:
+    ParticleForce<CloudType>(owner, mesh, dict, forceType),
+    srfPtr_(NULL)
+{}
+
+
+template<class CloudType>
+Foam::SRFForce<CloudType>::SRFForce
+(
+    const SRFForce& srff
+)
+:
+    ParticleForce<CloudType>(srff),
+    srfPtr_(NULL)
+{}
+
+
+// * * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::SRFForce<CloudType>::~SRFForce()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class CloudType>
+void Foam::SRFForce<CloudType>::cacheFields(const bool store)
+{
+    if (store)
+    {
+        const typename SRF::SRFModel& model = this->mesh().template
+            lookupObject<SRF::SRFModel>("SRFProperties");
+        srfPtr_ = &model;
+    }
+    else
+    {
+        srfPtr_ = NULL;
+    }
+}
+
+
+template<class CloudType>
+Foam::forceSuSp Foam::SRFForce<CloudType>::calcNonCoupled
+(
+    const typename CloudType::parcelType& p,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
+{
+    forceSuSp value(vector::zero, 0.0);
+
+    const typename SRF::SRFModel& srf = *srfPtr_;
+
+    const vector& omega = srf.omega().value();
+    const vector& axis = srf.axis();
+
+    const vector r = p.position() - axis*(axis & p.position());
+
+    // Coriolis and centrifugal acceleration terms
+    value.Su() = 2.0*(p.U() ^ omega) + (omega ^ (r ^ omega));
+
+    return value;
+}
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/SRF/SRFForce.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,66 +22,95 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::NoDrag
+    Foam::SRFForce
 
 Description
-    Dummy drag model for 'none'
+    Calculates particle SRF reference frame force
+
+SourceFiles
+    SRFForceI.H
+    SRFForce.C
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef NoDrag_H
+#ifndef SRFForce_H
-#define NoDrag_H
+#define SRFForce_H
 
-#include "DragModel.H"
+#include "ParticleForce.H"
+#include "SRFModel.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
+
+class fvMesh;
+
 /*---------------------------------------------------------------------------*\
-                            Class NoDrag Declaration
+                       Class SRFForce Declaration
 \*---------------------------------------------------------------------------*/
 
 template<class CloudType>
-class NoDrag
+class SRFForce
 :
-    public DragModel<CloudType>
+    public ParticleForce<CloudType>
 {
+    // Private data
+
+        //- Pointer to the SRF model
+        const typename SRF::SRFModel* srfPtr_;
+
+
 public:
 
     //- Runtime type information
-    TypeName("none");
+    TypeName("SRF");
 
 
     // Constructors
 
-        //- Construct from dictionary
+        //- Construct from mesh
-        NoDrag(const dictionary&, CloudType&);
+        SRFForce
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const word& forceType
+        );
 
         //- Construct copy
-        NoDrag(const NoDrag<CloudType>& dm);
+        SRFForce(const SRFForce& srff);
 
         //- Construct and return a clone
-        virtual autoPtr<DragModel<CloudType> > clone() const
+        virtual autoPtr<ParticleForce<CloudType> > clone() const
         {
-            return autoPtr<DragModel<CloudType> >
+            return autoPtr<ParticleForce<CloudType> >
             (
-                new NoDrag<CloudType>(*this)
+                new ParticleForce<CloudType>(*this)
             );
         }
 
 
     //- Destructor
-    virtual ~NoDrag();
+    virtual ~SRFForce();
 
 
     // Member Functions
 
-        //- Flag to indicate whether model activates drag model
+        // Evaluation
-        bool active() const;
 
-        //- Return drag coefficient
+            //- Cache fields
-        scalar Cd(const scalar) const;
+            virtual void cacheFields(const bool store);
+
+            //- Calculate the non-coupled force
+            virtual forceSuSp calcNonCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
 };
 
 
@@ -92,7 +121,7 @@ public:
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 #ifdef NoRepository
-#   include "NoDrag.C"
+    #include "SRFForce.C"
 #endif
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/forceSuSp/forceSuSp.H

@@ -0,0 +1,146 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::forceSuSp
+
+Description
+    Helper container for force Su and Sp terms
+
+SourceFiles
+    forceSuSpI.H
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef forceSuSp_H
+#define forceSuSp_H
+
+#include "Tuple2.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// Forward declaration of friend functions
+class forceSuSp;
+inline forceSuSp operator+(const forceSuSp& susp1, const forceSuSp& susp2);
+inline forceSuSp operator*(const forceSuSp& susp, const scalar s);
+
+/*---------------------------------------------------------------------------*\
+                          Class forceSuSp Declaration
+\*---------------------------------------------------------------------------*/
+
+class forceSuSp
+:
+    public Tuple2<vector, scalar>
+{
+
+public:
+
+    //- Component labeling enumeration
+    enum components
+    {
+        SU = 0,
+        SP = 1
+    };
+
+
+    // Constructors
+
+        //- Construct null
+        inline forceSuSp();
+
+        //- Construct given VectorSpace
+        inline forceSuSp(const Tuple2<vector, scalar>& susp);
+
+        //- Construct given two components
+        inline forceSuSp(const vector& Su, const scalar Sp);
+
+        //- Construct from Istream
+        inline forceSuSp(Istream&);
+
+
+    // Member Functions
+
+        // Access
+
+            //- Return const access to the explicit contribution
+            inline const vector& Su() const;
+
+            //- Return const access to the implicit contribution
+            inline scalar Sp() const;
+
+
+        // Edit
+
+            //- Return reference to the explicit contribution
+            inline vector& Su();
+
+            //- Return reference to the explicit contribution
+            inline scalar& Sp();
+
+
+        // Operators
+
+            //- Assignment
+            inline void operator=(const forceSuSp& susp);
+
+            //- Addition
+            inline void operator+=(const forceSuSp& susp);
+
+            //- Subtraction
+            inline void operator-=(const forceSuSp& susp);
+
+
+        // Friend operators
+
+            //- Addition
+            friend inline forceSuSp operator*
+            (
+                const forceSuSp& susp1,
+                const forceSuSp& susp2
+            );
+
+            //- Multiplication
+            friend inline forceSuSp operator*
+            (
+                const scalar s,
+                const forceSuSp& susp
+            );
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "forceSuSpI.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/forceSuSp/forceSuSpI.H

@@ -0,0 +1,129 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+// * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * * * //
+
+inline Foam::forceSuSp::forceSuSp()
+{}
+
+
+inline Foam::forceSuSp::forceSuSp
+(
+    const Tuple2<vector, scalar>& fs
+)
+:
+    Tuple2<vector, scalar>(fs)
+{}
+
+
+inline Foam::forceSuSp::forceSuSp(const vector& Su, const scalar Sp)
+{
+    first() = Su;
+    second() = Sp;
+}
+
+
+inline Foam::forceSuSp::forceSuSp(Istream& is)
+:
+    Tuple2<vector, scalar>(is)
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+inline const Foam::vector& Foam::forceSuSp::Su() const
+{
+    return first();
+}
+
+
+inline Foam::scalar Foam::forceSuSp::Sp() const
+{
+    return second();
+}
+
+
+inline Foam::vector& Foam::forceSuSp::Su()
+{
+    return first();
+}
+
+
+inline Foam::scalar& Foam::forceSuSp::Sp()
+{
+    return second();
+}
+
+
+// * * * * * * * * * * * * * * * Operators * * * * * * * * * * * * * * * * * //
+
+inline void Foam::forceSuSp::operator=(const forceSuSp& susp)
+{
+    first() = susp.first();
+    second() = susp.second();
+}
+
+
+inline void Foam::forceSuSp::operator+=(const forceSuSp& susp)
+{
+    first() += susp.first();
+    second() += susp.second();
+}
+
+
+inline void Foam::forceSuSp::operator-=(const forceSuSp& susp)
+{
+    first() -= susp.first();
+    second() -= susp.second();
+}
+
+
+// * * * * * * * * * * * * * * * Friend Operators  * * * * * * * * * * * * * //
+
+inline Foam::forceSuSp Foam::operator+
+(
+    const forceSuSp& susp1,
+    const forceSuSp& susp2
+)
+{
+    return forceSuSp
+    (
+        susp1.first() + susp2.first(),
+        susp1.second() + susp2.second()
+    );
+}
+
+
+inline Foam::forceSuSp Foam::operator*
+(
+    const scalar s,
+    const forceSuSp& susp
+)
+{
+    return forceSuSp(susp.first()*s, susp.second()*s);
+}
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Thermodynamic/ParticleForces/BrownianMotion/BrownianMotionForce.C

@@ -0,0 +1,210 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "BrownianMotionForce.H"
+#include "mathematicalConstants.H"
+#include "demandDrivenData.H"
+
+using namespace Foam::constant;
+
+// * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::scalar Foam::BrownianMotionForce<CloudType>::erfInv(const scalar y) const
+{
+    const scalar a = 0.147;
+    scalar k = 2.0/(mathematical::pi*a) +  0.5*log(1.0 - y*y);
+    scalar h = log(1.0 - y*y)/a;
+    scalar x = sqrt(-k + sqrt(k*k - h));
+
+    if (y < 0.0)
+    {
+        return -x;
+    }
+    else
+    {
+        return x;
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::BrownianMotionForce<CloudType>::BrownianMotionForce
+(
+    CloudType& owner,
+    const fvMesh& mesh,
+    const dictionary& dict,
+    const word& forceType
+)
+:
+    ParticleForce<CloudType>(owner, mesh, dict, forceType),
+    rndGen_(owner.rndGen()),
+    lambda_(readScalar(this->coeffs().lookup("lambda"))),
+    turbulence_(readBool(this->coeffs().lookup("turbulence"))),
+    turbulenceModelPtr_(NULL),
+    kPtr_(NULL),
+    ownK_(false)
+{
+    if (turbulence_)
+    {
+        HashTable<const compressible::turbulenceModel*> models =
+            this->mesh().objectRegistry::lookupClass
+            <
+                compressible::turbulenceModel
+            >();
+
+        if (models.size() == 1)
+        {
+            turbulenceModelPtr_ = models.begin()();
+        }
+        else
+        {
+            FatalErrorIn
+            (
+                "Foam::BrownianMotionForce<CloudType>::BrownianMotionForce"
+                "("
+                    "CloudType&, "
+                    "const fvMesh&, "
+                    "const dictionary&"
+                ")"
+            )   << "Unable to find a valid turbulence model in mesh database"
+                << exit(FatalError);
+        }
+    }
+}
+
+
+template<class CloudType>
+Foam::BrownianMotionForce<CloudType>::BrownianMotionForce
+(
+    const BrownianMotionForce& bmf
+)
+:
+    ParticleForce<CloudType>(bmf),
+    rndGen_(bmf.rndGen_),
+    lambda_(bmf.lambda_),
+    turbulence_(bmf.turbulence_),
+    turbulenceModelPtr_(NULL),
+    kPtr_(NULL),
+    ownK_(false)
+{}
+
+
+// * * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * //
+
+template<class CloudType>
+Foam::BrownianMotionForce<CloudType>::~BrownianMotionForce()
+{
+    turbulenceModelPtr_ = NULL;
+}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class CloudType>
+void Foam::BrownianMotionForce<CloudType>::cacheFields(const bool store)
+{
+    if (turbulence_)
+    {
+        if (store)
+        {
+            tmp<volScalarField> tk = turbulenceModelPtr_->k();
+            if (tk.isTmp())
+            {
+                kPtr_ = tk.ptr();
+                ownK_ = true;
+            }
+            else
+            {
+                kPtr_ = tk.operator->();
+                ownK_ = false;
+            }
+        }
+        else
+        {
+            if (ownK_ && kPtr_)
+            {
+                deleteDemandDrivenData(kPtr_);
+                ownK_ = false;
+            }
+        }
+    }
+}
+
+
+template<class CloudType>
+Foam::forceSuSp Foam::BrownianMotionForce<CloudType>::calcCoupled
+(
+    const typename CloudType::parcelType& p,
+    const scalar dt,
+    const scalar Re,
+    const scalar rhoc,
+    const scalar muc
+) const
+{
+    forceSuSp value(vector::zero, 0.0);
+
+    const scalar dp = p.d();
+    const scalar Tc = p.Tc();
+
+    const scalar eta = rndGen_.sample01<scalar>();
+    const scalar alpha = 2.0*lambda_/dp;
+    const scalar cc = 1.0 + alpha*(1.257 + 0.4*exp(-1.1/alpha));
+
+    const scalar sigma = physicoChemical::sigma.value();
+
+    scalar f = 0.0;
+    if (turbulence_)
+    {
+        const scalar mp = p.mass();
+        const label cellI = p.cell();
+        const volScalarField& k = *kPtr_;
+        const scalar kc = k[cellI];
+        const scalar Dp = sigma*Tc*cc/(3*mathematical::pi*muc*dp);
+        f = eta/mp*sqrt(2.0*sqr(kc)*sqr(Tc)/(Dp*dt));
+    }
+    else
+    {
+        const scalar rhop = p.rho();
+        const scalar s0 =
+            216*muc*sigma*Tc/(sqr(mathematical::pi)*pow5(dp)*(rhop/rhoc)*cc);
+        f = eta*sqrt(mathematical::pi*s0/dt);
+    }
+
+    const scalar sqrt2 = sqrt(2.0);
+    for (label i = 0; i < 3; i++)
+    {
+        const scalar x = rndGen_.sample01<scalar>();
+        const scalar eta = sqrt2*erfInv(2*x - 1.0);
+        value.Su()[i] = f*eta;
+    }
+
+    return value;
+}
+
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Thermodynamic/ParticleForces/BrownianMotion/BrownianMotionForce.H

@@ -0,0 +1,162 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::BrownianMotionForce
+
+Description
+    Calculates particle Brownian motion force
+
+SourceFiles
+    BrownianMotionForceI.H
+    BrownianMotionForce.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef BrownianMotionForce_H
+#define BrownianMotionForce_H
+
+#include "ParticleForce.H"
+#include "cachedRandom.H"
+#include "turbulenceModel.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                    Class BrownianMotionForce Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class CloudType>
+class BrownianMotionForce
+:
+    public ParticleForce<CloudType>
+{
+    // Private data
+
+        //- Reference to the cloud random number generator
+        cachedRandom& rndGen_;
+
+        //- Molecular free path length [m]
+        const scalar lambda_;
+
+        //- Turbulence flag
+        bool turbulence_;
+
+        //- Reference to a compressible turbulence model
+        const compressible::turbulenceModel* turbulenceModelPtr_;
+
+        //- Pointer to the turbulence kinetic energy field
+        const volScalarField* kPtr_;
+
+        //- Flag that indicates ownership of turbulence k field
+        bool ownK_;
+
+
+    // Private Member Functions
+
+        //- Inverse erf for Gaussian distribution
+        scalar erfInv(const scalar y) const;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("BrownianMotion");
+
+
+    // Constructors
+
+        //- Construct from mesh
+        BrownianMotionForce
+        (
+            CloudType& owner,
+            const fvMesh& mesh,
+            const dictionary& dict,
+            const word& forceType
+        );
+
+        //- Construct copy
+        BrownianMotionForce(const BrownianMotionForce& bmf);
+
+        //- Construct and return a clone
+        virtual autoPtr<ParticleForce<CloudType> > clone() const
+        {
+            return autoPtr<ParticleForce<CloudType> >
+            (
+                new BrownianMotionForce<CloudType>(*this)
+            );
+        }
+
+
+    //- Destructor
+    virtual ~BrownianMotionForce();
+
+
+    // Member Functions
+
+        // Access
+
+            //- Return const access to the molecular free path length [m]
+            inline scalar lambda() const;
+
+            //- Return const access to the turbulence flag
+            inline bool turbulence() const;
+
+
+        // Evaluation
+
+            //- Cache fields
+            virtual void cacheFields(const bool store);
+
+            //- Calculate the non-coupled force
+            virtual forceSuSp calcCoupled
+            (
+                const typename CloudType::parcelType& p,
+                const scalar dt,
+                const scalar Re,
+                const scalar rhoc,
+                const scalar muc
+            ) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "BrownianMotionForceI.H"
+
+#ifdef NoRepository
+    #include "BrownianMotionForce.C"
+#endif
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/lagrangian/intermediate/submodels/Thermodynamic/ParticleForces/BrownianMotion/BrownianMotionForceI.H

@@ -0,0 +1,42 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2011 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+template<class CloudType>
+inline Foam::scalar Foam::BrownianMotionForce<CloudType>::lambda() const
+{
+    return lambda_;
+}
+
+
+template<class CloudType>
+inline bool Foam::BrownianMotionForce<CloudType>::turbulence() const
+{
+    return turbulence_;
+}
+
+
+// ************************************************************************* //

tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/coalCloud1Properties

@@ -90,18 +90,17 @@ constantProperties
 
 particleForces
 {
-    gravity             on;
+     activeForces
-    virtualMass         off;
+     (
-    pressureGradient    off;
+         sphereDrag
-    paramagnetic        off;
+         gravity
+     );
 }
 
 subModels
 {
     InjectionModel  ManualInjection;
 
-    DragModel       SphereDrag;
-
     DispersionModel StochasticDispersionRAS;
 
     PatchInteractionModel StandardWallInteraction;

tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/limestoneCloud1Properties

@@ -74,18 +74,17 @@ constantProperties
 
 particleForces
 {
-    gravity             on;
+     activeForces
-    virtualMass         off;
+     (
-    pressureGradient    off;
+         sphereDrag
-    paramagnetic        off;
+         gravity
+     );
 }
 
 subModels
 {
     InjectionModel  ManualInjection;
 
-    DragModel       SphereDrag;
-
     DispersionModel StochasticDispersionRAS;
 
     PatchInteractionModel StandardWallInteraction;

tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/constant/reactingCloud1Properties

@@ -89,18 +89,17 @@ constantProperties
 
 particleForces
 {
-    gravity         on;
+     activeForces
-    virtualMass     off;
+     (
-    pressureGradient off;
+         sphereDrag
-    paramagnetic    off;
+         gravity
+     );
 }
 
 subModels
 {
     InjectionModel  ReactingMultiphaseLookupTableInjection;
 
-    DragModel       SphereDrag;
-
     DispersionModel none;
 
     PatchInteractionModel LocalInteraction;

tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/parcelInBox/constant/reactingCloud1Properties

@@ -89,18 +89,17 @@ constantProperties
 
 particleForces
 {
-    gravity         on;
+     activeForces
-    virtualMass     off;
+     (
-    pressureGradient off;
+         sphereDrag
-    paramagnetic    off;
+         gravity
+     );
 }
 
 subModels
 {
     InjectionModel  ManualInjection;
 
-    DragModel       SphereDrag;
-
     DispersionModel none;
 
     PatchInteractionModel StandardWallInteraction;
@@ -132,7 +131,7 @@ subModels
         U0              (0 0 0);
         sizeDistribution
         {
-            pdfType         uniform;
+            distributionModelType uniform;
             uniformDistribution
             {
                 minValue        100e-06;

tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties

@@ -89,18 +89,17 @@ constantProperties
 
 particleForces
 {
-    gravity         on;
+     activeForces
-    virtualMass     off;
+     (
-    pressureGradient off;
+         sphereDrag
-    paramagnetic    off;
+         gravity
+     );
 }
 
 subModels
 {
     InjectionModel  PatchInjection;
 
-    DragModel       SphereDrag;
-
     DispersionModel StochasticDispersionRAS;
 
     PatchInteractionModel StandardWallInteraction;
@@ -135,7 +134,7 @@ subModels
         flowRateProfile constant 1;
         sizeDistribution
         {
-            pdfType         general;
+            distributionModelType general;
             generalDistribution
             {
                 distribution

tutorials/lagrangian/reactingParcelFoam/evaporationTest/constant/reactingCloud1Properties

@@ -86,18 +86,17 @@ constantProperties
 
 particleForces
 {
-    gravity             off;
+     activeForces
-    virtualMass         off;
+     (
-    pressureGradient    off;
+         sphereDrag
-    paramagnetic        off;
+         gravity
+     );
 }
 
 subModels
 {
     InjectionModel  ManualInjection;
 
-    DragModel       SphereDrag;
-
     DispersionModel none;
 
     PatchInteractionModel StandardWallInteraction;

tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/kinematicCloud1Properties

@@ -58,18 +58,17 @@ constantProperties
 
 particleForces
 {
-    gravity             on;
+     activeForces
-    virtualMass         off;
+     (
-    pressureGradient    off;
+         sphereDrag
-    paramagnetic        off;
+         gravity
+     );
 }
 
 subModels
 {
     InjectionModel  ManualInjection;
 
-    DragModel       SphereDrag;
-
     DispersionModel StochasticDispersionRAS;
 
     PatchInteractionModel StandardWallInteraction;

tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/thermoCloud1Properties

@@ -73,18 +73,17 @@ constantProperties
 
 particleForces
 {
-    gravity             on;
+     activeForces
-    virtualMass         off;
+     (
-    pressureGradient    off;
+         sphereDrag
-    paramagnetic        off;
+         gravity
+     );
 }
 
 subModels
 {
     InjectionModel  ManualInjection;
 
-    DragModel       SphereDrag;
-
     DispersionModel StochasticDispersionRAS;
 
     PatchInteractionModel StandardWallInteraction;

tutorials/lagrangian/steadyReactingParcelFoam/counterFlowFlame2D/constant/reactingCloud1Properties

@@ -18,81 +18,6 @@ FoamFile
 solution
 {
     active          no;
-
-    integrationSchemes
-    {
-        U               Euler;
-        T               Analytical;
-    }
-}
-
-
-constantProperties
-{
-    parcelTypeId    1;
-
-    rhoMin          1e-15;
-    minParticleMass 1e-15;
-    TMin            200;
-    pMin            1000;
-    minParticleMass 1e-15;
-
-    rho0            1400;
-    T0              313;
-    Cp0             1680;
-
-    youngsModulus   2e9;
-    poissonsRatio   0.35;
-
-    epsilon0        0.8;
-    f0              0.3;
-
-    Tvap            400;
-    Tbp             400;
-    Pr              0.7;
-    LDevol          0;
-    hRetentionCoeff 1;
-
-    constantVolume  true;
-}
-
-
-particleForces
-{
-    gravity         off;
-    virtualMass     off;
-    pressureGradient off;
-    paramagnetic    off;
-}
-
-
-subModels
-{
-    InjectionModel  none;
-
-    CollisionModel  none;
-
-    DragModel       none;
-
-    DispersionModel none;
-
-    PatchInteractionModel none;
-
-    HeatTransferModel none;
-
-    CompositionModel none;
-
-    PhaseChangeModel none;
-
-    DevolatilisationModel none;
-
-    SurfaceReactionModel none;
-
-    PostProcessingModel none;
-
-    SurfaceFilmModel none;
-
-    radiation       off;
 }
 
 

tutorials/lagrangian/steadyReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties

@@ -22,6 +22,7 @@ solution
     transient       no; // yes;
     calcFrequency   10;
     maxTrackTime    5.0;
+    maxCo           0.3;
 
     coupled         true;
     cellValueSourceCorrection off;
@@ -99,10 +100,11 @@ constantProperties
 
 particleForces
 {
-    gravity         on;
+     activeForces
-    virtualMass     off;
+     (
-    pressureGradient off;
+         sphereDrag
-    paramagnetic    off;
+         gravity
+     );
 }
 
 
@@ -110,8 +112,6 @@ subModels
 {
     InjectionModel  PatchInjection;
 
-    DragModel       SphereDrag;
-
     DispersionModel StochasticDispersionRAS;
 
     PatchInteractionModel StandardWallInteraction;
@@ -146,7 +146,7 @@ subModels
         flowRateProfile constant 1;
         sizeDistribution
         {
-            pdfType         general;
+            distributionModelType general;
             generalDistribution
             {
                 distribution